/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#include <QImageReader>

#include <QRect>

#include "hswallpaperloaderthread.h"

/*!

    \class HsWallpaperLoaderThread

    \ingroup group_hsdomainmodel

    \brief 

*/

/*!

*/

HsWallpaperLoaderThread::HsWallpaperLoaderThread(QObject *parent)

  : QThread(parent),

    mResult(false)

{

}

/*!

*/

HsWallpaperLoaderThread::~HsWallpaperLoaderThread()

{

}

/*!

    \internal

    Scales and crops source image using target rect.

    Centers target rect automatically.

    Saves scaled and cropped image as given target.

    Result can be read when finished by using result().

*/

void HsWallpaperLoaderThread::run() 

{

    mResult = true;

    QImageReader imageReader(mSourcePath);

    QRect clipRect(QPoint(), mTargetSize);

    if (imageReader.canRead()) {

        QSize sourceSize = imageReader.size();

        //Scale image's size to target's dimensions

        sourceSize.scale(clipRect.width(), clipRect.height(),

                         Qt::KeepAspectRatioByExpanding);

        imageReader.setScaledSize(sourceSize);

        //Crop center part of the scaled image as a target image

        clipRect.moveCenter(QPoint(sourceSize.width() / 2, sourceSize.height() / 2));

        imageReader.setScaledClipRect(clipRect);

        mResult = imageReader.read().save(mTargetPath);

    } else {

        mResult = false;

    }

}